And luthee k



(No Model.)

F. Gr. SUSEMIHL 8v L. K. JEWETT.

I OAR TRUCK. No. 361,845.r 'PatentedAprl 26, 1887.

N PETERS. Phom-Lnhogmplwr. wnsningwn. D. C.

Unire STAT-ns1 Arana* Fries.

FRANCIS G. SUSEMIHL, OF DETROIT, MICHIGAN, AND LUTHER K. JEVVETT,

i OF BOSTON, MASSACHUSETTS.

vCAR-Teuers- SPECIPICATION forming part of Letters Patent No. 361,8l5, dated April 26, 1887.

l Application filed August 4, 1886. Serial No. 209,961. (No model.)

.To all whom it may concern,`

Be it known that we, FRANoIs G. SUsEMIHL, of Detroit, county of Wayne, and State of Michigan, and LUTHER K. J EWETT, of Bos- 5 ton, county of Suffolk, and State of Massachusetts, have invented an Improvement in Car-Trucks, of which the following description, in connection with the accompanying drawings, is a specification, likeletters on the ro drawings representing like parts.

This invention has for its object to improve the construction of car-trucks wherein the chief part of the truck is composed of metal, our invention being an improvement on that class of truck represented in United States Patent N o. 279,951, dated June 26, 1883, our present improvement providing for greater strength in the finished truck.

Our invention in a car-truck consists, essen- '20 tially, in a U-shaped transom and arch-bars and saddle combined with links, spring-seats supported thereby, springs, and a metallic bolster to enter the said transom, as will be described; also, in the combination, with a me- 2 5 tallic U-shaped transom, arch-bar, and truss, of metallic areh-bar-supporting blocks rigidly attached to the said transom, substantially as will be described.

Other features of our invention will be hereinaftcr set forth at the end of this specification.

Figure 1 is a top or plan view of one-half of a truck containing our invention; Fig. 2, a section of Fig. 1 in the dotted line m x,- Fig. 3, a-longitudinal section in the line x' a2. Fig. 4 shows one of the arch-bar-supportiug blocks in perspective, and Fig. 5 a detail of the saddle removed.

The wheels o, axles a', and the housings a? 4o and their contained boxes are and may be of any usual construction. The transom b, as well as the bolster b', are herein shown as composed of strong sheet metal, preferably of steel of about one-fourth of an inch thick, the same being bent into U shape to form a box or trough with rounded corners, as at b, the said transom and bolster being each in one piece, instead of in several pieces riveted together, as in the said patent.

The bolster is sustained by springs b3, of any desired number, (herein shownas four,) the said springs being so-located at the ends'of the transom and bolster as to be effective in reducing concussion in the line of the archbars and trusses. The transom and bolster are both strengthened internally by angleirons, as at b4. The bolster is enough narrower than the transom to afford sufficient space between them to receive the bolster-supporting metallic links b5, made preferably of the 6o toughest and strongest wrought-iron, the said links preferably being bent, as shown in the drawings, to form double loops, so that they may not onlyembrace the metallic saddle e, but extend under the spring-seat d. The sad- 6,5 dles are grooved at their under side (see Fig.

3) to rest upon and embrace the arch-bar c', the latter being extended longitudinally ol the truck and lying at right angles to the bolster b. The links b5 serve to support the 7o spring-seat d, which is a metal bar, having at its lower side a lug, d', to enter a hole in a plate, cl2, riveted to the transom, the said lug and block co-operating to prevent the swinging of the said spring-seat with the links aboutthe saddle as a fulcrum.

In another application led concurrently herewith, Serial No. 209,962, we have made especial provisions to permit the spring-seat to swing, and therein claim is made forsuch 8o features.

The housings receive upon them housingclips d3, which at their under sides have projections to embrace the housing, the said clips at their upper sides having shoulders, as 85 at 6, against which may abut the ends of the arch-bars o', and having each av lug or upright, 7, which, preferably rounded at its outer side, is embraced by and serves to hold the trusslinks c, the latter being kept down in engage- 9o ment with the said lugs by means of a cap, e', held in place by a bolt, c2, which is extended down through the clip and the outer side of the housing, and also through the usual wheel` strap, e3, where the said bolt has applied to it suitable nuts. The upper arch-bar, c', is further attached to the housing by other bolts, as e The truss-links e are composed of round or square metal rods of great strength properly roo welded or united together to form, preferably, an endless loop-like truss, the looped ends of which embrace the lugs 7, the truss extending from the said lugs along the clips dpthence diagonally down over the rounded inner ends of the said clips, as shown in Fig. 2, and under the transom b, affording support for the latter. At each side of the transom b, and in the space formed between it and the truss e and the under side of thearch-bar c,we have placed certain archbar-sustaining blocks or castings ro f, (herein shown as substantially triangular in shape,)the said blocks preventinginwardbending or buckling or crushing of the arch-bars, the upper and lower edges ofthe said blocks f being preferably grooved to receive the archi 5 bar and the truss e, such construction preventing lateral bending or straining of either the archbar or truss.

The blocks f are bolted in place between the arch-bars and truss e, at the sides of the transom b, by suitable bolts, g,which are extended down through the saddle, and also through the Wheel-straps.

The block f, as herein shown, have at one edge of their vertical or inner sides a flange,

f2, having holes 26, the said blocks being bolted or riveted to the sides of the transom, thesaid flange projecting from the block f at right angles, so that when riveted to the transom, two of the blocks f at each end thereof there will 3o be formed, in connection with the arch-bars and trusses, a rigid truck-one that will keep ysquare under all ordinary use.

It will be noticed that the link b5 is what is called a doubled7 link, or, in other Words, it is 3 5 so made as to straddle the saddle and extend transversely under and sustain the springseats and the bolster above; but the employment of two open links to straddle the saddle and embrace the ends of thespring-seats would,

4o We consider, come within the scope of our invention.

Herein it will be seen that the Weight of the car-body sustained by the bolster is not applied directly to the transom through the springs b2,

but is applied to the links b5, supported'by the saddles c.

The employment of a truss, e, made as an endless loop to embrace the lug 7 of the clip, held in place upon the housing by projections 5o. embracing the said housings, is a material element of safety, for in case of breaking the bolts g, which is not unfrequent, strain is not exerted on the housing-bolts, so as to'shear them oft, but the strain on the truss is exerted upon the lug 7, and this strain is counteracted by the end of the archbar abutting against the shoulder 6 of the lug 7, and at the same timeA it will be noticed that the archbar-supporting blocks prevent any buckling of the arch-bars. rIhe lug 7 may be omitted from the clips d3, in which case the ends of the top arch-bars, c', may be extended and rounded to be embraced by the truss-links e, the bolts ez being extended through holes in the said top archbars and the clips.

If the truss was made of a flat bar of metal instead of rods and was made to occupy the position herein occupied by the loop-truss, the holes which would haveto be made 4in the said dat bars for the reception of the bolts gg would so weaken the said bars as to render their use of butlittleimportance, whereas with t-helooplike truss the bolts have free passage between sides. i

'Ihe employmentof the loop-like truss-links enables us to bring the resisting force right in a line with the pulling strain of the truss-link,

thereby avoiding all shearing strain on the bolts employed.

Each saddle chas at its ends projections 88, which abut against and co-operate with the shoulders or notches 89 of the arch-bar-sustaining blocks f, the said saddle thus constituting a brace between the upper ends of the said blocks f.

rlhe proj eetions 90 of the clips d? avoid shearing strain upon the bolts e2 e4 between the said clips and housing.

We claim- 1. In a car truck, a one-piece U-shaped transom and arch-bars and saddles, combined with links, spring-seats supported thereby, springs, and the metallic bolster, one being made to enter the other, substantially as described.

2. In a car-body, the U-shaped sheet-metal transom, the archbar c', and the loop-like truss e, combined with the independent metal-llc arch-bar-sustaining blocks f, rigidly attached to the said transom, substantially as described.

3. In a car-truck, the U -shaped transom,

the arch-bars, housings, and clips provided with lugs 7, combined with the looped truss e,

bent about the said lugs and extended under and supporting the said transom, substantially as described.

4. The arch-bars, the metallic transom, the bearings, clips thereon, and the looped truss e, to engage the said clips, and extended under the transom, combined with metallic archbar-sustaining blocks interposed between the arch-bars and the said trusses and rigidly attached to the said transom, substantially'as described.

5. The arch-bars, the metallic transom, the housings, clips provided with lugs 7 and having shoulders 6, and the looped truss c, to engage the said lugs and bent, as described, to support the transom, combined with the metallic archbar-sustaining blocks rigidly attached to the said transom, the ends of the arch-bars meeting the-said shoulders 6, substantially as described.

6. The arch-bars, the metallic transom, the housings, clips provided with lugs 7 and having shoulders 6, and the looped truss e, to engage the said lugs and bent, as described, to support the transom, combined with the metallic archbar-sustaining blocks, the said blocks being grooved at their edges toembrace both the arch-bar and truss, substantially as described.

7. In a car-truck, a vone-piece U-shaped transom having an attached plate, d3, pro- ICO IIC

vided with a hole, and arch-bars and saddles, combined with links, springseats supported thereby, provided with lugs or projections d', springs, and the metallic bolster to enter the said transom, substantially as described.

8. In a ear-truck, the arch-bars, the looped trusses e, the transom, and the arch-bar-supporting blocks f, attached to the said transom, combined with the bolster, the springs, springseats, and the double links b5, bent or shaped to not only straddle the arch-bars, but also to pass under the springseats from one to their other end.

9. The arch-bars, the metallic transom, the housings, clips thereon, and the looped truss e, to engage the said clips, and extended under the transom, combined with metallic archbars, sustaining-blocks interposed between the arch-bars and the said trusses and rigidly attached to the said transom, and with the wheelstraps a2, all bolted together, substantial-ly as described.

10. In a car-truck, the arohbar, the saddle c therein, provided with the lugs 88, and a truss-link, combined with the arch-bar-sus- 25 taining blocks and with bolts to confine the said saddle in position between and constitute a brace for the upper ends of the said blocks, substantially as described.

ll. The arch-bar, housings, and clips hav- 3o ing projections 90 at their under sides to ernbrace the housings, combined with the wheelstrap e and with bolts to connect the said parts together, substantially as described.

In testimony whereof We have signed our 35 names to this specification in the presence of two subscribing witnesses.

FRANCIS G. SUSEMIHL. LUTHER K. J EWETT. 

